Drill holder



A. J. MATTER 2,260,086

DRILL HOLDER 2 Sheets-Sheet 1 Oct. 21, 1941.

Filed Sept. 12, 1940 1941. A. J. MATT-ER 2,260,086

DRILL HOLDER Filed Sept. 12, 1940 2 Sheets-Sheet 2 412% erZ 1 537;

F'atenteci Oct. 21, 194i iJNiTEofsTArE,

7 pain. noLnEn Albert JQMatter, Park Ri e, Ill. Application September12, 1940, Serial No.'356,567 '2 Claims. -(01; 114.69)

My invention relates to holdersfor drill. bits and more especially setsof drill bits in which holders the bits are placed and retained in a.predetermined arrangement according to 'size.

One of my objects is to provide an economical and compact constructionof drill holder;

' Another object is to provide a construction of holder whereby thedrill bits will be held in predetermined positions in the holder,against accidental displacement. therefrom, regardless of the turning ofthe holder upside down or. sidewise, yet be easily individuallyremovable from, and replaceable in, the holder; particularly to the endof permitting a workman to storerthe holder, with. the bits therein, inhi'stooLboX, withoutrisk of the bits becoming displaced from theholderand intermingled with each other and with'such other tools as may becontained inthe box, and which would require sorting and gaging of anumber of, the. bits each time to, find the right one to use,;-and otherobjectsas will be'manifest from the following description. 2;;Referringjto the accompanying drawings:

Figure 1 is a face view of a holder constituting one embodiment ofmyinvention.

. Figure 2 is a broken viewin side, elevation of the holder showingdrill bits in place-therein.

Figure 3 is an enlarged sectionalview ofthe holder, the section beingtaken at thefll lev 3 on Fig. 1 and viewed in the direction of thearrow. 7

Figure 4 is a broken perspective view of an: other embodiment of theinvention.

Figure 5 is a view in side elevation of the structure of Fig. 1.

Figure 6 is an end View of another embodiment of the invention.

Figure 7 is a broken'view, in side elevation, of the structure of Fig.6.

Figure 8 is an end view of another embodiment of the invention.

Figure 9 is a broken view in side elevation of the structure of Fig. 8;and

Figure 10 is an end view of another embodiment of the invention.

Referring to the construction shown in Figs. 1-3, the holder comprises abase portion II of any suitable resilient material, such as for example,soft rubber, molded into the desired'shape, as for example as shown, andhaving a recess [2 in its upper surface affording a marginal'upstandingrim 15.

The holder also comprises a plate 14, as for example ofmetal, set intothe recess l2 and secured therein in any suitable manner, as for exwhichextend through openings 16 inthe plate H and into .openings H. in' thebase portion wherein they are firmly secured by. the grippingactionofthe rubber.

The holder .in this particular instance is provided for holdinga set ofdrill bits l8 the shanks of which, in accordance with common practice,are of progressively greateridiameter, and thus there. is provided in.the plate [4, which constitutes a gage plate, a series of holes 19extending therethrough and graduated in size in accordance with thediameters of the shanks of. the drill bits. Eachlhole [9 with which isassociated the gage member and diameter of .the particularsize ofdrill-bit as showntobe received therein, is. of a diameter. 'slightlylargerthan the diameter, of the shank of such particular drill bit butsmaller than .the;;di'ameter of the next larger size of drill bit soas':to permit it tobe readilyinserted into the proper one of the holes l9.

The resilientibase portion ll of the holder has aseries .of holes-20which register, respectively,

with'th holesgm; in the plate I 4,fthe holes 21] beingof less diameterthan the holes 19 with which they, respectively, register and ofsuchdiameter, smaller than the shanks of ;the drill bits inserted throughthe holes 19in the plate l4 and into. the holes 2| in the base [I thatthe shanks'will be firmly gripped by the resilient material andsufiiciently frictionally held in place in the holder as to prevent thefalling of thedrill bitsirom the holder when thelatter isinverted orturned sideways, yet permit of their removal from the holder by theworkman as desired.

One of the advantages of the provision of the base member of resilientmaterial as described is that .being of such material, damage to othertools coming in contact with the holder is minimized.

In the construction shown in Figs. 4 and 5 the body of the holder isformed of a rigid channel bar 2 I, as for example of metal, presentingupper and lower flanges 22 and 23, respectively, and a rigid bar 24 ofangle shape in cross section located in the channel of the bar 2| andsecured at its flange 25 to the web 26 of the bar 2|, its flange 21being disposed substantially parallel with the flange 23 and spacedtherefrom.

The flanges 23 and 21 contain alining holes 28 and 29, respectively, ofprogressively greater diameters from one end to the otherof the holder,as in the case of the holder of Figs. 1-3, for receiving the shanks ofthe set of drill-bits l8 to be assembled with the holder.

- In this construction the drill-bits are fricample by the headedpush-pins shown at I5 tionally, releasably held ineplace in the holderby means which are located at one side of the drill bits and yieldinglylaterally press against the shanks of the drill bits; the means shownfor this purpose comprising a strip 30 of resilient material, as forexample soft rubber, secured fiatwise to the flange 25 of the bar 24 andof such thickness as to become engaged, and compressed, by theshanks ofthe drill bits in the assembling of the drill bits with the holder tothe position as shown in the drawings. The face of the strip 30 at whichit is engaged by the drill bits is preferably of arcuate form in crosssection as shown at 3|, to facilitate the assembling of the drill bitsin the holder. 4 V

The construction shown in Figs. 6 and 7 exemplifies the invention asincorporated in a holder in which the drill bits, instead of projectingfrom one side only of the holder, projects from opposite sides thereofin staggered relation to each other, a feature which permits the holderto be made of less length than in the case where all of the drill bitsextend at one side only of the holder, while permitting adjacent drillbits to be spaced apart the desired distance for easy introduction ofthe drill bits into the holder and selective removal of the drill bitstherefrom.

In this construction the body of the holder is formed of a rigid channelbar 32 having upper and lower flanges 33 and 34, respectively, and arigid channel-bar 35 located in the channel of thebar 32 and secured atits web 35 to the web 31 of the bar 32 'with its flanges 38 and 38substantially parallel with the flanges 33 and 34 and spaced therefrom.

- The flanges 33 and 34 contain holes at intervals along their length toreceive the shanks of the drill-bits IB as in the case of the flange 23of Figs. 4 and 5, the holes in the flanges 33 being staggered withrespect to the holes in the flange 34, and the flanges 38 and '39contain holes for the shanks of the drill bits Which al'ih'e,respectively, with the holes in the flanges 33 and 34 whereby the drillbits are positioned in the holder to "alternately extend rrom oppositesides thereof as exemplified by the showing in I. 7 The drill-bitreceiving holes in the flanges 33, 34,38 and 39 may be rogressivelygraduated in diameter for the set of drill-bits continuously from oneend to the other of the holder or any other arrangement of graduationsprovided as desired.

construction is provided with means Io'r fl'ictibnally holdihg the drillbits in price in the holder as in the case of the construction shown inFigs. 4 and 5, the resilient strip provided for this purpose and shownat 40, being located in the channel of the bar 35 and secured in placeto the web of this bar.

The construction shown in Figs. 8 and 9 is the same as that shown inFigs. 4 and 5 except that the means for frictionally holding thedrill-bits in place in the holder instead of being provided as a stripof resilient material such as rubber, is in the form of a series offinger springs 4|, as for example of spring metal, shown as formedintegrally with a connecting strip 42 secured to holes in said baseportion.

the base of the holder, the several fingers 4|, respectively,registering with, and yieldingly bearing against, the drill bits 18introduced into the holder. Those of the parts shown in Figs. 8 and 9which correspond with similar parts of the construction shown in Figs. 4and 5 are given the same designating numerals.

The construction shown in Fig. 10 is the same as that shown in Figs. 1,2 and 3 except that the body of resilient material in which the drillbits are frictionally gripped at their shanks and represented at 43 ispartially encased in a rigid channel bar 44 the web portion 45 of whichcorresponds with the plate H of Figs. 1-3 and is apertured as in thecase of this plate, to receive the shanks of the drill-bits.

While I have illustrated and described certain specific embodiments ofmy invention I do not wish to be understood as intending to limit itthereto as the same may be variously modified and altered and theinvention embodied mother -forms of structure without departing from thespirit of the invention. 7 g

What'I claim as newand desire to secure by Letters Patent is':

l. A holder comprising a base portion of resili'ent material havingholes to receive the articles to be held in the holder and a "platesecured to said base portion and containing holes registering with, andslightly larger than, the

2. A holder comprising a base portion of'resilient material having holesto receive the articles to be held in the holder and having a recess init's upper surface, and a plate located, and secured, in said recess andcontaining holes registering with, and slightly larger than, the holesin said basejportion.

ALBERT J. Mama.

